Please make sure you're posting in the correct forum when creating a new thread. This was automatically flagged and put into the mod queue along with your other thread as the FAQ sections are not intended for general discussion.
Thread moved to the MKIII forum (NOT the FAQ).
As for your problem.... Unless you've got a fuel controller which can be used to tune to compensate the BOV will cause your off throttle problems/stalls/backfiring/over-rich conditions. Also search for knock sensor rewire regarding the code 52.
P.S. The 7M never came equipped with a MAF. It's either a Vane Air Flow Meter (7M-GE) or it's a Karman Vortex Air Flow Meter (7M-GTE). VAFM, KVAFM or the generic title AFM. A MAF is a specific type of meter, it's not a generic term.
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